ToDo Calculator’s composite materials and structures calculator is a vital resource for enthusiasts, engineers, and professionals in this field. Tailored for composite material properties, structural mechanics, and design considerations, it offers advanced features and precise calculations. With its user-friendly interface, it accommodates users of all skill levels, making it indispensable for designing composite structures, analyzing their behavior, and optimizing performance in various applications.
Matrix Strength Efficiency Factor is a Composite matrix strength relative to individual.The formula is given by: Where: η is the matrix strength efficiency factor. σmatrix, composite is the strength of the matrix in the composite material. σmatrix, individual is the strength of the matrix material individually.
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Strain Energy Release Rate is an Energy per unit area during crack propagation.The formula is given by: Where: G is the strain energy release rate. dW is the change in potential energy. dA is the change in crack area.
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The efficiency of fiber strength in a composite compared to individual fibers.The formula is given by: Where: σfc is a stress fiber composite. σfi is a stress fiber individual.
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Matrix Toughness is a Resistance to crack propagation in composite matrix.The formula is given by: Where: KIc is the fracture toughness of the matrix. σf is the ultimate tensile strength of the matrix material. c is a constant related to the crack geometry and specimen configuration.
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Fiber Aspect Ratio is a Length relative to diameter for reinforcement. The formula is given by: Where: Aspect Ratio is the dimensionless ratio representing the fiber’s length-to-diameter ratio. Fiber Length is the length of the fiber. Fiber Diameter is the diameter of the fiber.
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Interlaminar Shear Strength is a Resistance to shearing forces between laminate layers.The formula is given by: Where: τinterlaminar is the interlaminar shear strength. F is the applied force required to shear the material. A is the cross-sectional area over which the force is applied.
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Hygrothermal Expansion is a Measures dimensional changes in composite laminates due to moisture and temperature.The formula is given by: Where: εtotal is the total strain. εthermal is the thermal strain. εmoisture is the moisture-induced strain.
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Delamination Growth Rate is a Measures the rate of interlayer separation. The formula is given by: Where: dt/dA is the rate of change of delamination area. KI is the stress intensity factor. ΔG is the change in the energy release rate.
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Halpin-Tsai Model is a Predicts composite shear modulus using fiber and matrix properties.The formula is given by: Where: Gcomposite is the shear modulus of the composite material. Gf is the shear modulus of the fiber. Gm is the shear modulus of the matrix.
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Density of material is a mass per unit volume. The formula is given by: Where: ρ is the density of the material (usually measured in kilograms per cubic meter, kg/m³ or grams per cubic centimeter, g/cm³). m is the mass of the material (usually measured in kilograms, kg or grams, g). V is the volume of
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